Documentation/vm/: split txt and source files

[safe/jmp/linux-2.6] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index c309515..3bc48b0 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -54,6 +54,7 @@ parameter is applicable:
        IMA     Integrity measurement architecture is enabled.
        IOSCHED More than one I/O scheduler is enabled.
        IP_PNP  IP DHCP, BOOTP, or RARP is enabled.
        IMA     Integrity measurement architecture is enabled.
        IOSCHED More than one I/O scheduler is enabled.
        IP_PNP  IP DHCP, BOOTP, or RARP is enabled.

+       IPV6    IPv6 support is enabled.

        ISAPNP  ISA PnP code is enabled.
        ISDN    Appropriate ISDN support is enabled.
        JOY     Appropriate joystick support is enabled.
        ISAPNP  ISA PnP code is enabled.
        ISDN    Appropriate ISDN support is enabled.
        JOY     Appropriate joystick support is enabled.


@@ -199,6 +200,10 @@ and is between 256 and 4096 characters. It is defined in the file
                        acpi_display_output=video
                        See above.
 
                        acpi_display_output=video
                        See above.
 

+       acpi_early_pdc_eval     [HW,ACPI] Evaluate processor _PDC methods
+                               early. Needed on some platforms to properly
+                               initialize the EC.
+

        acpi_irq_balance [HW,ACPI]
                        ACPI will balance active IRQs
                        default in APIC mode
        acpi_irq_balance [HW,ACPI]
                        ACPI will balance active IRQs
                        default in APIC mode


@@ -240,7 +245,7 @@ and is between 256 and 4096 characters. It is defined in the file
 
        acpi_sleep=     [HW,ACPI] Sleep options
                        Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig,
 
        acpi_sleep=     [HW,ACPI] Sleep options
                        Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig,

-                                 old_ordering, s4_nonvs }
+                                 old_ordering, s4_nonvs, sci_force_enable }

                        See Documentation/power/video.txt for information on
                        s3_bios and s3_mode.
                        s3_beep is for debugging; it makes the PC's speaker beep
                        See Documentation/power/video.txt for information on
                        s3_bios and s3_mode.
                        s3_beep is for debugging; it makes the PC's speaker beep


@@ -253,6 +258,9 @@ and is between 256 and 4096 characters. It is defined in the file
                        of _PTS is used by default).
                        s4_nonvs prevents the kernel from saving/restoring the
                        ACPI NVS memory during hibernation.
                        of _PTS is used by default).
                        s4_nonvs prevents the kernel from saving/restoring the
                        ACPI NVS memory during hibernation.

+                       sci_force_enable causes the kernel to set SCI_EN directly
+                       on resume from S1/S3 (which is against the ACPI spec,
+                       but some broken systems don't work without it).

 
        acpi_use_timer_override [HW,ACPI]
                        Use timer override. For some broken Nvidia NF5 boards
 
        acpi_use_timer_override [HW,ACPI]
                        Use timer override. For some broken Nvidia NF5 boards


@@ -308,6 +316,11 @@ and is between 256 and 4096 characters. It is defined in the file
        aic79xx=        [HW,SCSI]
                        See Documentation/scsi/aic79xx.txt.
 
        aic79xx=        [HW,SCSI]
                        See Documentation/scsi/aic79xx.txt.
 

+       alignment=      [KNL,ARM]
+                       Allow the default userspace alignment fault handler
+                       behaviour to be specified.  Bit 0 enables warnings,
+                       bit 1 enables fixups, and bit 2 sends a segfault.
+

        amd_iommu=      [HW,X86-84]
                        Pass parameters to the AMD IOMMU driver in the system.
                        Possible values are:
        amd_iommu=      [HW,X86-84]
                        Pass parameters to the AMD IOMMU driver in the system.
                        Possible values are:


@@ -344,6 +357,9 @@ and is between 256 and 4096 characters. It is defined in the file
                        Change the amount of debugging information output
                        when initialising the APIC and IO-APIC components.
 
                        Change the amount of debugging information output
                        when initialising the APIC and IO-APIC components.
 

+       autoconf=       [IPV6]
+                       See Documentation/networking/ipv6.txt.
+

        show_lapic=     [APIC,X86] Advanced Programmable Interrupt Controller
                        Limit apic dumping. The parameter defines the maximal
                        number of local apics being dumped. Also it is possible
        show_lapic=     [APIC,X86] Advanced Programmable Interrupt Controller
                        Limit apic dumping. The parameter defines the maximal
                        number of local apics being dumped. Also it is possible


@@ -626,6 +642,12 @@ and is between 256 and 4096 characters. It is defined in the file
                        See drivers/char/README.epca and
                        Documentation/serial/digiepca.txt.
 
                        See drivers/char/README.epca and
                        Documentation/serial/digiepca.txt.
 

+       disable=        [IPV6]
+                       See Documentation/networking/ipv6.txt.
+
+       disable_ipv6=   [IPV6]
+                       See Documentation/networking/ipv6.txt.
+

        disable_mtrr_cleanup [X86]
                        The kernel tries to adjust MTRR layout from continuous
                        to discrete, to make X server driver able to add WB
        disable_mtrr_cleanup [X86]
                        The kernel tries to adjust MTRR layout from continuous
                        to discrete, to make X server driver able to add WB


@@ -1032,7 +1054,7 @@ and is between 256 and 4096 characters. It is defined in the file
                        No delay
 
        ip=             [IP_PNP]
                        No delay
 
        ip=             [IP_PNP]

-                       See Documentation/filesystems/nfsroot.txt.
+                       See Documentation/filesystems/nfs/nfsroot.txt.

 
        ip2=            [HW] Set IO/IRQ pairs for up to 4 IntelliPort boards
                        See comment before ip2_setup() in
 
        ip2=            [HW] Set IO/IRQ pairs for up to 4 IntelliPort boards
                        See comment before ip2_setup() in


@@ -1553,10 +1575,10 @@ and is between 256 and 4096 characters. It is defined in the file
                        going to be removed in 2.6.29.
 
        nfsaddrs=       [NFS]
                        going to be removed in 2.6.29.
 
        nfsaddrs=       [NFS]

-                       See Documentation/filesystems/nfsroot.txt.
+                       See Documentation/filesystems/nfs/nfsroot.txt.

 
        nfsroot=        [NFS] nfs root filesystem for disk-less boxes.
 
        nfsroot=        [NFS] nfs root filesystem for disk-less boxes.

-                       See Documentation/filesystems/nfsroot.txt.
+                       See Documentation/filesystems/nfs/nfsroot.txt.

 
        nfs.callback_tcpport=
                        [NFS] set the TCP port on which the NFSv4 callback
 
        nfs.callback_tcpport=
                        [NFS] set the TCP port on which the NFSv4 callback


@@ -1726,6 +1748,9 @@ and is between 256 and 4096 characters. It is defined in the file
        nomfgpt         [X86-32] Disable Multi-Function General Purpose
                        Timer usage (for AMD Geode machines).
 
        nomfgpt         [X86-32] Disable Multi-Function General Purpose
                        Timer usage (for AMD Geode machines).
 

+       nopat           [X86] Disable PAT (page attribute table extension of
+                       pagetables) support.
+

        norandmaps      Don't use address space randomization.  Equivalent to
                        echo 0 > /proc/sys/kernel/randomize_va_space
 
        norandmaps      Don't use address space randomization.  Equivalent to
                        echo 0 > /proc/sys/kernel/randomize_va_space
 


@@ -1769,6 +1794,12 @@ and is between 256 and 4096 characters. It is defined in the file
                        purges which is reported from either PAL_VM_SUMMARY or
                        SAL PALO.
 
                        purges which is reported from either PAL_VM_SUMMARY or
                        SAL PALO.
 

+       nr_cpus=        [SMP] Maximum number of processors that an SMP kernel
+                       could support.  nr_cpus=n : n >= 1 limits the kernel to
+                       supporting 'n' processors. Later in runtime you can not
+                       use hotplug cpu feature to put more cpu back to online.
+                       just like you compile the kernel NR_CPUS=n
+

        nr_uarts=       [SERIAL] maximum number of UARTs to be registered.
 
        numa_zonelist_order= [KNL, BOOT] Select zonelist order for NUMA.
        nr_uarts=       [SERIAL] maximum number of UARTs to be registered.
 
        numa_zonelist_order= [KNL, BOOT] Select zonelist order for NUMA.


@@ -1936,8 +1967,12 @@ and is between 256 and 4096 characters. It is defined in the file
                                IRQ routing is enabled.
                noacpi          [X86] Do not use ACPI for IRQ routing
                                or for PCI scanning.
                                IRQ routing is enabled.
                noacpi          [X86] Do not use ACPI for IRQ routing
                                or for PCI scanning.

-               use_crs         [X86] Use _CRS for PCI resource
-                               allocation.
+               use_crs         [X86] Use PCI host bridge window information
+                               from ACPI.  On BIOSes from 2008 or later, this
+                               is enabled by default.  If you need to use this,
+                               please report a bug.
+               nocrs           [X86] Ignore PCI host bridge windows from ACPI.
+                               If you need to use this, please report a bug.

                routeirq        Do IRQ routing for all PCI devices.
                                This is normally done in pci_enable_device(),
                                so this option is a temporary workaround
                routeirq        Do IRQ routing for all PCI devices.
                                This is normally done in pci_enable_device(),
                                so this option is a temporary workaround


@@ -1986,6 +2021,14 @@ and is between 256 and 4096 characters. It is defined in the file
                force   Enable ASPM even on devices that claim not to support it.
                        WARNING: Forcing ASPM on may cause system lockups.
 
                force   Enable ASPM even on devices that claim not to support it.
                        WARNING: Forcing ASPM on may cause system lockups.
 

+       pcie_pme=       [PCIE,PM] Native PCIe PME signaling options:
+               off     Do not use native PCIe PME signaling.
+               force   Use native PCIe PME signaling even if the BIOS refuses
+                       to allow the kernel to control the relevant PCIe config
+                       registers.
+               nomsi   Do not use MSI for native PCIe PME signaling (this makes
+                       all PCIe root ports use INTx for everything).
+

        pcmv=           [HW,PCMCIA] BadgePAD 4
 
        pd.             [PARIDE]
        pcmv=           [HW,PCMCIA] BadgePAD 4
 
        pd.             [PARIDE]


@@ -2691,6 +2734,13 @@ and is between 256 and 4096 characters. It is defined in the file
                                        medium is write-protected).
                        Example: quirks=0419:aaf5:rl,0421:0433:rc
 
                                        medium is write-protected).
                        Example: quirks=0419:aaf5:rl,0421:0433:rc
 

+       userpte=
+                       [X86] Flags controlling user PTE allocations.
+
+                               nohigh = do not allocate PTE pages in
+                                       HIGHMEM regardless of setting
+                                       of CONFIG_HIGHPTE.
+

        vdso=           [X86,SH]
                        vdso=2: enable compat VDSO (default with COMPAT_VDSO)
                        vdso=1: enable VDSO (default)
        vdso=           [X86,SH]
                        vdso=2: enable compat VDSO (default with COMPAT_VDSO)
                        vdso=1: enable VDSO (default)


@@ -2784,6 +2834,12 @@ and is between 256 and 4096 characters. It is defined in the file
                        default x2apic cluster mode on platforms
                        supporting x2apic.
 
                        default x2apic cluster mode on platforms
                        supporting x2apic.
 

+       x86_mrst_timer= [X86-32,APBT]
+                       Choose timer option for x86 Moorestown MID platform.
+                       Two valid options are apbt timer only and lapic timer
+                       plus one apbt timer for broadcast timer.
+                       x86_mrst_timer=apbt_only | lapic_and_apbt
+

        xd=             [HW,XT] Original XT pre-IDE (RLL encoded) disks.
        xd_geo=         See header of drivers/block/xd.c.
 
        xd=             [HW,XT] Original XT pre-IDE (RLL encoded) disks.
        xd_geo=         See header of drivers/block/xd.c.